Removing And Replacing The Fan Tray - Cisco 7500 Series Replacing Manual

Step 6
This completes the chassis cover panel removal and replacement procedure.

Removing and Replacing the Fan Tray

When viewing the chassis from the noninterface processor end, the fan tray is on the far right. (See
Figure 3.) A cutout in the front of the tray provides a handle for pulling the tray out of the chassis.
An M4 Phillips-head screw anchors a tab on the lower left side of the tray to the interior chassis
frame, just below the right power supply ear. When the fan tray is fully inserted in the chassis, an
edge connector on the fan control board snaps into the backplane electrical connector. The bottom
of the tray is a metal runner that guides the tray along a metal track on the chassis floor. Also, a
bracket on the chassis ceiling helps guide the tray into the chassis.
Follow these steps to replace the fan tray:
Step 1
Step 2
Step 3
Step 4
Step 5
Step 6
Step 7
Hold the top front of the panel in place, if necessary, while you tighten the two captive
slotted screws with a 3/16-inch flat-blade screwdriver.
Turn OFF the system power switch and unplug the power cable from the power source.
To remove the chassis cover panel, follow Steps 1 and 2 in the section "Removing and
Replacing the Chassis Cover Panel" on page 6.
Attach an ESD-preventive strap between you and an unpainted surface on the chassis.
Locate the fan tray, which is in the far right of the noninterface processor end of the chassis.
(See Figure 3.) On the lower left side of the fan tray, locate the tab that is anchored to the
chassis frame with an M4 Phillips screw.
Use a number 2 Phillips screwdriver to remove the M4 Phillips screw from the tab on the
fan tray. (See the cutaway view of this screw in Figure 3.)
Grasp the cutout handle in the front of the tray and pull the fan tray straight out of the
chassis. (See Figure 3.) After the fan control board connector frees the backplane socket,
the fan tray will slide easily along the track and out of the chassis.
Place the removed fan tray in an antistatic bag for storage or return to the factory.
Replacing the Chassis Interface (CI) Board in the Cisco 7500 Series Chassis
Replacing the CI in the Cisco 7505
7